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PHASED ARRAY ANTENNA SYSTEM WITH ELECTRICAL TILT CONTROL

  • US 20090322610A1
  • Filed: 11/07/2007
  • Published: 12/31/2009
  • Est. Priority Date: 11/10/2006
  • Status: Active Grant
First Claim
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1. A phased array antenna system with electrical tilt control operative as a transmitter in transmit mode and incorporating:

  • a) an array of antenna elements;

    b) tilt control means for splitting an input signal into at least first, second and third intermediate signals such that the at least first and second intermediate signals are each variably delayable relative to the third intermediate signal;

    c) corporate feed means for processing the intermediate signals to produce drive signals for antenna elements, the drive signals at least partly comprising vector combinations of the intermediate signals; and

    d) relative phasing for the drive signals imposed in combination by the tilt control means and the corporate feed means as appropriate for phased array beam steering in response to variable delay of the at least first and second intermediate signals relative to the third intermediate signal.

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